QuickBooks isn’t making a calculation. It is adding up the total of the tax you charge on your invoices. Therefore, when you take your taxable sales & multiply it by the tax percent, you can arrive at a different number than the report displays.
Resolution for 'adding up issue: 'QB calculates sales tax liability wrong' available: Yes.
The adding up issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the adding up issue yourself by looking for a resolution described in the article. If it is a complex adding up issue or you are unable to solve the issue, you may contact us by clicking here or by using other adding up support options.
For more information about resolving issues related to adding up in Quickbooks/QBO or to get support for the issue 'QB calculates sales tax liability wrong', click the link below: